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Window World of San Diego is your trusted, locally-owned San Diego exterior remodeler specializing in high-quality replacement vinyl windows, doors, and vinyl siding. As San Diego window replacement experts, we provide energy-efficient windows designed to enhance your home's comfort and reduce energy costs. Experience expert craftsmanship and personalized service for all your exterior remodeling needs.
Many customers praised the friendly and professional service provided by the staff, highlighting their responsiveness and willingness to assist throughout the process.
Installation Quality
The installation teams received numerous compliments for their professionalism, efficiency, and attention to detail, often leaving homes clean and well-finished.
Product Satisfaction
Customers expressed high satisfaction with the quality and aesthetics of the windows and doors, noting significant improvements in their homes.
Communication Issues
Some customers reported problems with communication, including delays in responses and issues with order accuracy, which led to frustration.
Warranty Support
The company was recognized for standing behind their products and providing effective warranty support, addressing issues promptly when they arose.
MA
Michael San Agustin
2 days ago
5.0
Window World provided exceptional service. Starting from the Design Consultant Jason Willman whom was very helpful and provided detailed insight as to what was best for our project and offered different products that best fit our needs.
The installers were also highly professional and very experienced as our window was being framed for proper fitting and placement.
External work after window was placed completed by another highly trained and experienced stucco installer made the now installed window look as if it had originally been placed there by matching to the exact shapes and texture of the existing stucco. I could not believe the precise workmanship of this job.
Lastly Ariana Maciel Installation Coordinator was a consummate professional in this whole process. Window World is fortunate to have Ariana a true asset on their team. She assisted with and coordinated the whole project from Installation and scheduling of the different installers was on our timeline and availability. Her closeout of the project was just as streamlined provided we were satisfied and if there was anything else we needed, to include our warranties and copies of our detailed receipts. Her professionalism and work ethic goes beyond the 5 stars I am limited to provide in this review. Thank you Window World for providing World Class customer service. I will definitely use them for any other service related needs and would recommend them to my family and friends.
EM
Emmanuel Molin
5 days ago
5.0
Will and the crew came to do install on a post rainy day and did the job effortlessly. We live on the third floor with no elevators and they had no problem getting the install done! These guys are knowledgeable and they are professionals! They deserve all the praise for how fast and efficient they were. Took the time to explain how the windows function after and cleaned up their mess. Thank you guys and Window World!
MB
Mackenzie Borau
Nov 14, 2025
5.0
We are very happy to have purchased our Milgard picture windows and sliding doors from Window World. The staff are friendly, knowledgeable, and quick to reply. We received quality service from the initial selection process at the store in San Marcos, CA, to the professional installation service. It is clear that this business prioritizes customer relationships and satisfaction. We are very happy with the look of the windows and doors in our home and we would definitely recommend Window World to others!
DM
Dina McQueen
Nov 14, 2025
5.0
The 3 installers who spent all day in my house, 2 one day, and 1 another day, were diligent, respectful perfectionists. They were not the only installers I’ve ever had in the many homes I’ve owned, but certainly were the most professional and skilled. Highly, highly recommend Window World!
RR
RobertB
Nov 8, 2025
5.0
Not great before and after pics however the new front door and new windows made all the difference. I have used window world at four different houses over the years and will continue to use them when needed. The staff is courteous, efficient, listened to what I needed. They delivered, installed, and cleaned up. Great company to work with
Frequently Asked Questions About Window World of San Diego
What does "Any Size, Installed" mean?
The term "Any Size" refers to any size replacement Double-Hung window our manufacturer will construct. Currently this is a minimum width and height of 15" X 26" and a maximum of 48" X 78". "Installed" refers to the removal of a basic Double-Hung wooden window and installing your new Window World replacement window, using the existing wooden stops.
What types of Payment methods & Financing do you offer?
We offer a variety of payment methods and financing options (subject to approved credit) depending on promotional period. Please contact us for more information regarding available options.
Will the replacement windows be installed from the inside or outside?
The majority of our replacement windows are installed from the outside. In some situations it may be necessary to install from the inside. On the day of installation, your installation expert will assess your unique situation and explain the process that will best suit your home.
Do you install replacement windows year-round? If so, will I lose a lot of heat/cooling at the time of installation?
Window World installs replacement windows year-round. An average installation will take only one day. Our crews install one window at a time and are trained to do what they can to minimize heating/cooling loss. The energy savings from your new windows will recover any incremental energy costs incurred during their installation many times over during their lifetime.
How can I prepare my house for my replacement windows?
Please take down curtains, blinds, or any other window treatments. Security sensors should also be removed and turned off by your security company. Please provide our installation expert with a clear path to the window(s) being replaced by moving anything that may be in the way. It is also advisable to remove all wall decorations from the walls close to the windows as they may fall during removal or installation.
How long will it take to get my replacement windows? How much time should I allow for the installation?
Generally, replacement windows can be installed within 4-8 weeks from the date that the final measurements are taken. The type of window being installed and type being removed help determine the amount of time needed to complete the job. On average each window takes about 30 minutes. Trim work and cleanup will require additional time to complete. An average job will take a single day.
What happens to my old windows?
After installing your new replacement windows we remove all old windows from your property and dispose of them properly. If you wish to keep your old windows or storm windows, please notify the installation crew as soon as it arrives for your installation.
What do I do if there is a problem with the windows?
Most of the issues encountered by our customers are easily corrected and don't necessarily mean that there is a problem with your window. For troubleshooting tops and advice on correcting common issues, check out the support page of our website. If, after trying the repairs suggested in our guide, your issue is still not resolved, you are always welcome to contact us, or fill out a warranty support form on the warranty page of the website
What does "Any Size, Installed" mean for window replacement?
"Any Size" means any size replacement Double-Hung window our manufacturer will construct, ranging from 15" x 26" to 48" x 78". "Installed" means the removal of your old Double-Hung wooden window and installation of the new Window World replacement using existing wooden stops.
What payment and financing options does Window World of San Diego offer?
We offer various payment methods including American Express, Cash, Check, Discover, Mastercard, and Visa. Financing is available subject to approved credit and promotional periods. Contact us for current options.
Will replacement windows be installed from inside or outside?
Most replacement windows are installed from the outside. In some cases, installation from the inside is necessary. Our installation expert will determine and explain the best process for your home on installation day.
Does Window World of San Diego install replacement windows year-round, and will there be heat loss during installation?
Yes, we install replacement windows year-round. Installation typically takes one day, replacing windows one at a time to minimize heating or cooling loss. Energy savings over time outweigh any short-term loss during installation.
How should I prepare my home for replacement window installation?
Remove curtains, blinds, or window treatments, and deactivate security sensors with your security company. Clear a path to windows being replaced and remove nearby wall decorations to prevent damage during installation.
How long does it take to get and install replacement windows?
Windows can be installed within 4-8 weeks after final measurements. Installation averages about 30 minutes per window; trim and cleanup may add time. Most jobs complete within one day.
What happens to my old windows after replacement installation?
Old windows are removed and properly disposed of unless you notify the installation crew before or during installation if you wish to keep them.
Who should I contact if there is a problem with my windows after installation?
First, check our website's support page for troubleshooting tips. If the issue persists, contact us directly or submit a warranty support form on our warranty page.
What are the business hours to contact Window World of San Diego for appointments?
Our call center is open from 7AM to 7PM Monday through Friday, and 8AM to 7PM on Saturday and Sunday to schedule appointments.
What nearby places can I visit when I come to Window World of San Diego?
Nearby you can find Western Exterminator for pest control services, Caliber Collision for auto body and repair, and Aqua Living Factory Outlets for hot tubs and pools. These may be convenient to visit before or after your appointment.
Are there other home improvement services close to Window World of San Diego?
Yes, nearby is JB Home Improvement Inc., a remodeling contractor, and Corky’s Pest Control. These services can complement your home remodeling needs.
What local amenities around Window World of San Diego can assist customers with insurance or real estate?
Farmers Insurance - Daniel Penate for auto insurance, Penate Insurance Agency, Inc., and The Jim Bottrell Team for real estate services are close by and can help with related needs during your visit.